Tool to extract letters from a message according to a pattern. It is possible to hide a text into another by adding parasites letters. Letters can follow a regular extraction pattern (eg: 1 letter of 2).

dCode is free and its tools are a valuable help in games, puzzles and problems to solve every day!You have a problem, an idea for a project, a specific need and dCode can not (yet) help you? You need custom development? Contact-me!

Message for dCode's author:

Team dCode read all messages and answer them if you leave an email (not published). It is thanks to you that dCode has the best Letters Extraction tool. Thank you.

Tool to extract letters from a message according to a pattern. It is possible to hide a text into another by adding parasites letters. Letters can follow a regular extraction pattern (eg: 1 letter of 2).

Answers to Questions

How to extract letters from a text?

Take the message ABCDEFGHIJKLMNOPQRSTUVWXYZ, dCode offers different modes for letters extraction:

Take 1 of N letters

Example: Taking 1 of 2 letters: A-C-E-G-I-K-M-O-O-O-U-W-Y-

Example: Taking 1 of 3 letters: A--D--G--J--M--P--S--V--Y-

Extract a pattern

Example: The pattern 2,3 means to take 1 letter each 2 and 1 letter each 3: A-C--F-H--K-M--P-R--U-W--Z

Extract by mask (1 = preserved letter, 0 = letter ignored)

Example: Using the binary mask 101: A-CD-FG-IJ-LM-OP-RS-UV-XY

The patterns and masks are repeated until reaching the end of the message.

If needed, start using any letter rather than the first letter.

Example: Taking a letter of 2 (starting at position 1): A-C-E-G-I-K-M-O-O-O-U-W-Y-

Example: Taking a letter of 2 (starting at position 2): -B-D-F-H-J-L-N-P-R-T-V-X-Z

Punctuation may (or may not) be taken into account in characters count.

How to extract letters in Excel?

Although this is not practical, Excel provides functions such as RIGHT() or LEFT() to extract N letters at the beginning or end of words. (dCode is better and recommanded)